IP Library Patent Application 14780082
Patent Application
App. No. 14/780,082

ARTICLE

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Patent No.
US None
App. No.
14/780,082
Abstract

An article in which at least one surface of a base is provided with a microrelief structure layer that contains a cured product of an active energy ray curable resin composition. The active energy ray curable resin composition contains a polymerizable component (Z1), a photopolymerization initiator (D) and an additive (E). The additive (E) is not polymerizable, and the content of the additive (E) in the microrelief structure layer is 5 mg/m 2 or less.

Claims (47)

1 . An article comprising a fine relief structure layer including a cured product of an active energy ray curable resin composition on at least one surface of a substrate, wherein

the active energy ray curable resin composition contains a polymerizable component (Z1), a photopolymerization initiator (D), and an additive (E), and

the additive (E) is a non-polymerizable and a content of the additive (E) in the fine relief structure layer is 5 mg/m 2 or less.

2 . The article according to claim 1 , wherein a mass average molecular weight of the additive (E) is in a range of 100 to 2000.

3 . The article according to claim 1 , wherein a change in reflection spectrum of the minimum value of a reflectance of a surface of the fine relief structure layer in a visible light region before and after the surface is wiped with ethanol is less than 20 nm.

4 . The article according to claim 1 , wherein the additive (E) includes at least one kind selected from the group consisting of an antioxidant, a polymerization inhibitor, an ultraviolet absorber, a light stabilizer, a defoaming agent, a mold releasing agent, a lubricant, a leveling agent, a surfactant, a coloring agent, a fluorescent agent, a luminescent agent, and an antistatic agent.

5 . The article according to claim 4 , wherein the additive (E) includes at least one of a polymerization inhibitor and a mold releasing agent.

6 . The article according to claim 4 , wherein the polymerization inhibitor includes at least one of a hydroquinone-based polymerization inhibitor and a phenolic polymerization inhibitor.

7 . The article according to claim 4 , wherein the mold releasing agent contains a (poly)oxyalkylene alkyl phosphate compound.

8 . The article according to claim 1 , wherein the polymerizable component (Z1) contains a (meth)acrylate (A) having a straight or branched chain alkyl or alkenyl group having 6 to 22 carbon atoms, an oxyalkylene group having 2 to 4 carbon atoms, and a (meth)acryloyl group.

9 . The article according to claim 1 , wherein the polymerizable component (Z1) contains an antioxidant (F) having a polymerizable functional group.

10 . An article comprising a fine relief structure layer including a cured product of an active energy ray curable resin composition on at least one surface of a substrate, wherein

the active energy ray curable resin composition contains a polymerizable component (Z2) containing a (meth)acrylate (A) having a straight or branched chain alkyl or alkenyl group having 6 to 22 carbon atoms, an oxyalkylene group having 2 to 4 carbon atoms, and a (meth)acryloyl group, and a photopolymerization initiator (D).

11 . The article according to claim 10 , wherein the (meth)acrylate (A) has a structure wherein the alkyl group or alkenyl group and the oxyalkylene group are bonded to each other.

12 . The article according to claim 10 , wherein a content of the (meth)acrylate (A) in the polymerizable component (Z2) is in a range of 0.1 to 10% by mass.

13 . An article comprising a fine relief structure layer including a cured product of an active energy ray curable resin composition on at least one surface of a substrate, wherein

the active energy ray curable resin composition contains a polymerizable component (Z3) and a photopolymerization initiator (D), and

the polymerizable component (Z3) contains an antioxidant (F) having a polymerizable functional group.

14 . The article according to claim 13 , wherein the antioxidant (F) has a (meth)acryloyl group as the polymerizable functional group.

15 . The article according to claim 13 , wherein the antioxidant (F) has radical scavenging ability.

16 . The article according to claim 13 , wherein the antioxidant (F) includes at least one of a phenolic antioxidant and a hindered amine-based antioxidant.

17 . The article according to claim 13 , wherein the antioxidant (F) is a compound having a (meth)acryloyl group in the same molecule, and

the compound is a hindered amine compound or a compound having a hydroxyl group in an aromatic ring as a substituent.

18 . The article according to claim 13 , comprising a non-polymerizable compound that is not copolymerized with the polymerizable component (Z3) as an additive (E).

19 . The article according to claim 1 , wherein the polymerizable component contains an oxyethylene group at 30 to 70% by mass with respect to the entire polymerizable component.

20 . The article according to claim 1 , wherein the polymerizable component contains a (meth)acrylate (B) having an oxyethylene group and two or more (meth)acryloyl groups.

21 . The article according to claim 1 , wherein the polymerizable component contains pentaerythritol (meth)acrylate or dipentaerythritol (meth)acrylate having two or more (meth)acryloyl groups.

22 . The article according to claim 1 , wherein a thickness of the fine relief structure layer is in a range of 1 to 50 μm.

23 . The article according to claim 1 , wherein an average interval between adjacent convex portions of the fine relief structure layer is equal to or less than a wavelength of visible light.

24 . An antireflective article comprising the article according to claim 1 .

25 . The article according to claim 9 , wherein the antioxidant (F) has a (meth)acryloyl group as the polymerizable functional group.

26 . The article according to claim 9 , wherein the antioxidant (F) has radical scavenging ability.

27 . The article according to claim 9 , wherein the antioxidant (F) includes at least one of a phenolic antioxidant and a hindered amine-based antioxidant.

28 . The article according to claim 9 , wherein the antioxidant (F) is a compound having a (meth)acryloyl group in the same molecule, and

the compound is a hindered amine compound or a compound having a hydroxyl group in an aromatic ring as a substituent.

29 . The article according to claim 10 , wherein the polymerizable component contains an oxyethylene group at 30 to 70% by mass with respect to the entire polymerizable component.

30 . The article according to claim 10 , wherein the polymerizable component contains a (meth)acrylate (B) having an oxyethylene group and two or more (meth)acryloyl groups.

31 . The article according to claim 10 , wherein the polymerizable component contains pentaerythritol (meth)acrylate or dipentaerythritol (meth)acrylate having two or more (meth)acryloyl groups.

32 . The article according to claim 10 , wherein a thickness of the fine relief structure layer is in a range of 1 to 50 μm.

33 . The article according to claim 10 , wherein an average interval between adjacent convex portions of the fine relief structure layer is equal to or less than a wavelength of visible light.

34 . An antireflective article comprising the article according to claim 10 .

35 . The article according to claim 13 , wherein the polymerizable component contains an oxyethylene group at 30 to 70% by mass with respect to the entire polymerizable component.

36 . The article according to claim 13 , wherein the polymerizable component contains a (meth)acrylate (B) having an oxyethylene group and two or more (meth)acryloyl groups.

37 . The article according to claim 13 , wherein the polymerizable component contains pentaerythritol (meth)acrylate or dipentaerythritol (meth)acrylate having two or more (meth)acryloyl groups.

38 . The article according to claim 13 , wherein a thickness of the fine relief structure layer is in a range of 1 to 50 μm.

39 . The article according to claim 13 , wherein an average interval between adjacent convex portions of the fine relief structure layer is equal to or less than a wavelength of visible light.

40 . An antireflective article comprising the article according to claim 13 .

Assignments (2)
MERGER Recorded Jun 28, 2017
From: MITSUBISHI RAYON CO., LTD.
To: MITSUBISHI CHEMICAL CORPORATION
Reel/Frame 043027/0929 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 25, 2015
From: OTANI, GO; NAKAI, YUSUKE
To: MITSUBISHI RAYON CO., LTD.
Reel/Frame 036655/0479 →